| Langley Park to Coudekerque-Branche | 3,772.40 mi (6,071.09 km) |
| Langley Park to Coueron | 3,690.15 mi (5,938.72 km) |
| Langley Park to Coulommiers | 3,856.64 mi (6,206.65 km) |
| Langley Park to Courbevoic | 3,819.50 mi (6,146.89 km) |
| Langley Park to Courcouronnes | 3,834.00 mi (6,170.23 km) |
| Langley Park to Cournon-d'Auvergne | 3,945.31 mi (6,349.36 km) |
| Langley Park to Courrieres | 3,809.01 mi (6,130.01 km) |
| Langley Park to Coutras | 3,816.70 mi (6,142.38 km) |
| Langley Park to Couzeix | 3,855.19 mi (6,204.32 km) |
| Langley Park to Cran-Gevrier | 4,067.53 mi (6,546.05 km) |
| Langley Park to Craponne | 4,012.13 mi (6,456.89 km) |
| Langley Park to Creil | 3,819.98 mi (6,147.67 km) |
| Langley Park to Crepy-en-Valois | 3,837.53 mi (6,175.91 km) |
| Langley Park to Crest | 4,055.37 mi (6,526.49 km) |
| Langley Park to Creteil | 3,831.09 mi (6,165.55 km) |
